Filter for gasoline



G. GIOVANNONI. FILTER FOR GASOLINE.

APPLICATION FILED DEC-19, 191B.

. Patented Jan. 3, 1922.

I GEg/ie/mo I edge connected with the outer edge erases.

GUGLIELMO GIOVANNONI, OI TURINI, ITALY, ASSIGNOR T0 bTTORINO POMILIO, OFNEW YORK, N. Y.

rrmna roa GASOLINE.

Specification of Letters Patent.

Patented Jan. 3, 1922.

To all whom it may concern:

Be it known that I, GUoLmLMo GIovAN NONI, subject of the King of Italy,and resident of Turin, Italy, have invented certain new and usefulImprovements in Filters-for Gasoline, of which the following is-aspecification.

This invention relates to the filters intended to be inserted intopipings leading liquids to or from tanks or the like and particularly tofilters intended to be used in connection with gasoline tanks orcarbureters for explosion engines.

This invention has for its object a filter in which the filteringsurface has a large area and is formed by a plurality of sectionsarranged in such a manner as to insure the proper operation of thedevice and the flow of the liquid also when a portion of the filteringsurface should be obstructed, and to reduce the liability to saidobstructions.

The annexed drawing shows by way of example a construction of the deviceaccording to the invention, and Figure 1 is the side view and Figure 2the central section of the same. Figure 3 is a section on line 3-3 ofFigure 2 looking in the direction of the arrows.

As shown in said figures, the filter comprises a receiver 1 to which theliquid is supplied through an upper port 2 intended to be connected withthe feeding pipe not shown; the upper wall of said receiver is providedwith a central sleeve 4 projecting downwardly into said receiver andcommunicating with the upper exhaust port 3. At the lower end of saidsleeve 4 is secured a deflecting bell or sleeve 5 extending to near thebottom of said receiver 1, this bottom being formed by a cup 1' suitablyconnected with said receiver 1.

Inside said hell 5 are arranged the filtering means which, in theconstruction illustrated, are formed by three concentric drums 6, 6and6" made of wire gauze. The outer drum 6 is secured at its lower edge toa v disc 7 and has its upper edge secured to the outer edge of a plate 8to which is also secured the upper edge of the intermediate drum 6. Thislatter in turn has its loger o a having flange or disc 9 the inner drum6' its lower edge secured to the same flange 9 whilst its upper edge isconnected with the mouth of sleeve 4.

As shown in the drawing, the disc 7 is imperforate, with the exceptionof a central hole for mountin purpose as hereinafter described, whilst pate 8 is made in the form of an annular ring to leave a passage orpassages between drums 6 and 6" and finally the disc 9 is likewiseprovided with holes 9 inits portion located inside the inner drum 6",forming a spider as shown in Figure 3.

The mounting of said filtering means is made by means of a centralspindle 10 which passes through the central holes of discs 7 and 9 andhas its threaded end screwed into a socket 12 secured to the lower cup1, said disc 7 being adapted to rest against the upper surface .of thesocket 12; the spindle 10 is provided with a shoulder 16, a spring 15being arranged between said shoulder and disc 9 to hold the inner drum 6extended and straight. Finally the spindle 10 is provided at its upperend with a manipulating knob 11.

The central socket 12 secured to the cup of bottom 1' of the device ishollow and provided with holes 13, flush with the surface of saidbottom, and with a cook 14 arranged at its lower end, this cock beingintended to be operated to discharge from receiver 1 and cup 1 water'andimpurities or foreign matters .which may accumulate in the same.

The liquid supplied through port 2 is deflected by bell 5 and is causedto flow downwardly along the outer surface of the same so as to enterinto said bell and to rise along its inner surface owing to theimperforate transverse disc 7; thereafter the liquid is drums beforereaching the exhaust passage and the flow of said liquid is notprevented should one or two of said drums be obstructed by impurities orforeign matters.

Further it is to be noted that the liability of said drums to beobstructed is reduced because the impurities or foreign matters whichmay be carried about by the liquid are unable to come into contactdirectly with said gauze drums as the liquid before reaching the same iscaused to flow downwardly along the outer surface of the bell 5 andthereafter to rise along the internal surface of the same so that saidimpurities are caused to fall down on the bottom of the receiver and maybe discharged therefrom by means of the holes 13 and cock 1 1.

Obviously the number of the gauze drums and the particular constructionof the parts .may be modified according to the requirements withoutdeparting from the scope of this invention. a

What I claim as my invention and desire to secure by United StatesLetters Patent is:

1. A filter for gasoline comprising a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening into said receiver, a plurality of concentric gauze drumsinside said. sleeve, transverse partitions connecting the adjacent edgesof said drums, passages in said partitions to allow the gasoline toenter into the annular spaces between said drums and an exhaust portopening into saidsleeve in the space enclosed by the inner drum.

2. A filter for gasoline comprising a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening into said receiver, a plurality of concentric gauze drums,inside said sleeve, transverse partitions connecting the adjacent edgesof a number of said drums, passages allowing the gasoline to enter intoa number of the annular spaces enclosed between said drums, an exhaustport opening into said sleeve into the space enclosed by the inner drumand other passages allowing the gasoline thus entered into the saidspaces enclosed by said drums and transverse partitions to flow intosaid exhaust port.

3. A filter for gasoline comprising a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening, into said receiver, three concentric gauze'drums insidesaid sleeve, a transvers partition closing the lower mouth of the outerdrum, a transverse partition connecting the upper edges of the outer andintermediate drums and having passages between the intermediate andinner drums, a transverse partition connecting the lower edges of theintermediate and inner drum, this partition having passages to cause thehollow of th inner drum to communicate with the space'enclosed betweenthe outer and intermediate drums and associate partitions, an exhaustportopening into said sleeve the upper dge of the inner drum beingconnected with the mouth of said exhaust port, and means for dischargingthe foreign matters accumulating on the bottom of said receiver.

4. A filter for gasoline comprising a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening in said receiver, a plurality of gauze drums inside saidsleeve, said drums having transverse walls provided with central holes,a central spindle passing through said drums and holes to hold the samein place.

5. A filter for gasoline comprising, a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening into said receiver, a plurality of gauze drums inside saidsleeve, a central spindle passing through said drums to hold the same inplace, a hollow socket projecting from the bottom of the receiveragainst which said drums rest,

said spindle being screwed into said socket, holes in the wall of saidsocket near the surface of said bottom and a cock adapted to cause saidsocket and receiver to communicate with outside.

6. A filter for gasoline comprising a receiver, a deflecting sleeveprojecting into said receiver to near the bottom of the same, a feedingport opening into said receiver, a plurality of gauze drums inside saidsleeve said drums having transverse walls provided with central holes, acentral spindle passing through said drums and central holes to hold thedrums in place, a shoulder on said spindle and a spring between saidshoulder and the transverse wall of the inner drum to hold the sameextended and straight.

Signed at Turin, Italy, October, A. D. 1918.

GUGLIELMO GIOVANNONI.

this 11th day of

